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57

lynch pin

Worth a look

Shows low returns (1.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 15Growth 66Conversion 67Competition 63Returns 95Price range 69Avg price 65Brand share 67Review moat 86Quality gap 15

Returns

Incredible1.0%

return rate — above 5% kills the launch gate

Review moat

Great276.9

avg incumbent reviews — the moat a new listing must climb

Price range

Good$4.20–$39.35

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Good6.0%

search→purchase rate — share of searches ending in a sale

Brand share

Good65%

top-5 brand share — brands hold most of the demand

Growth

Good+45.9%

90-day search growth — must beat 0% to launch

Avg price

Good$13.78

avg listing price — sweet spot $15–$100

Competition

Good47%

top-5 click share — leaders hold, buyers still browse

Market size

Bad$61K

$61K/yr · 74K searches

Quality gap

Bad4.8★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, lynch pin is a $61K/yr Amazon United States market (74K searches/yr). The top 5 brands hold 65% of demand. Demand peaks in May. Verdict: Worth a look — 57/100.

Data updated Jul 8, 2026 · scored weekly · How we score niches

lynch pin market data

Units sold / yr
4K–5K
avg 100–250/product
Revenue / yr
$55K–$69K
units × avg price
Conversion rate
6.0%
Avg BSR
#593
Page quality
0%
Prime
97%
Sponsored
90%
Out of stock
6.4%
Avg brand age
48 months
Avg seller age
180 days

Competition & brand share

The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.

Brands

21 rising

Sellers

24

Top-5 brand share

65%

Top 20: 99%

Top-5 click share

47%

Top 20: 91%

Open market

31%

  • Comonc19%
  • PINAILER14%
  • mankk14%
  • Easily11%
  • Litoexpe7%
  • yuntop5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +45.9% search growth over the last 90 days.
2K2KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May · busiest ÷ quietest = 1.9×

Top lynch pin search terms

  • lynch pin40K/yr
  • lynch pins13K/yr
  • linchpin8K/yr
  • linch pins7K/yr
  • linch pin6K/yr
All search terms

Top lynch pin products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%$2K8%$5K12%$7K16%$10K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about lynch pin

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall23%

“The build quality feels solid”

Value For Money19%

“Great deal”

Size-Overall12%

“Perfect fit”

Advertised Vs Actual Product10%

“Exactly as advertised”

Strength7%

“Case is solid”

Ease Of Use7%

“easy to use”

Durability5%

“Very durable”

Efficiency3%

“Works great”

Material Quality2%

“They are solid material”

Maintenance And Repair2%

“Great to have on hand for quick repairs or replacements”

What buyers complain about

Size-Overall19%

“Most pins are too long”

Strength15%

“flimsy pins that sometimes come with retail equipment”

Design-Overall8%

“Made incorrectly”

Value For Money8%

“yeah, probably more expensive than buying a bunch of these”

Leak-Proof5%

“spill out causing a disaster”

Durability4%

“These pins don't last forever -”

Assembly/Installation4%

“Broke 15 minutes after installing”

Stiffness3%

“The spring gate is rather stiff”

Top return reasons

Size-Overall81%
Advertised Vs Actual Product6%
Defective Material/Parts3%
Compatibility-Overall2%
Value For Money2%
Functionality-Overall2%
Quality-Overall1%
Thin1%
Design-Overall1%
Maintenance And Repair1%

Common questions

Is lynch pin profitable to sell on Amazon United States?
The niche generates $61K/yr across 29 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is +45.9%. Flapen's verdict: Worth a look (57/100).
How competitive is the lynch pin niche?
21 brands and 24 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 65% of demand.
What do buyers complain about in lynch pin?
Top complaints mined from reviews: Size-Overall, Strength, Design-Overall. The return rate is 1.0%.
When does demand for lynch pin peak?
Demand peaks in May; the busiest month runs 1.9× the quietest.
What does it cost to enter the lynch pin niche?
Listings span $4.20–$39.35; the average listing price is $13.78 (sweet spot $15–$100). The average incumbent carries 277 reviews — the moat a new listing must climb.